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09-08-2019, 01:28 PM | #1 |
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Clicking/Flapping Noise On High g Right Handers
Don't have a good recording of this, but it only happens on high load right handers at track or autox - doesn't matter whether I'm on power or not. It's like a clicking/flapping/clacking noise. Any ideas what this could be? I don't feel anything in the car/through pedals, just an audible sound.
Something diff or suspension rubbing? Doesn't happen on left handers/the left side - it MAY be the brake heat shield, but only when hot? Last edited by kyoo; 09-08-2019 at 03:36 PM.. |
09-09-2019, 11:59 AM | #4 |
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Does the volume or frequency change as you go faster?
I would get the car up on a lift and visually inspect. Could be something rubbing, debris stuck somewhere, etc. You might also need to get it up on ramps so the suspension is loaded and then crank the wheel to full-lock and see if anything is touching.
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09-09-2019, 01:47 PM | #5 |
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Maybe tire pickup or one of the felt undertray corners buffeting because the bottom has separated from the front?
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09-10-2019, 08:56 AM | #6 |
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thanks - i took a look, didn't particularly see anything. i had the rear right off, so i went ahead and pushed the heat shield back away from the rotor a bit. nothing obvious that i could tell.
no camber plates, but noise is 100% from right rear. i'll have it out on track again this weekend to see how it goes |
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09-11-2019, 10:08 AM | #7 |
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Tough to tell from the description, but I believe I experienced something very similar a couple years ago. Hard rights would cause a cyclical noise in what sounded like the rear left. I got black flagged for it, and they said everything was fine. I inspected it on the track and didn't see anything serious.
My shop inspected it shortly after and said the dust shield was slightly bent. Like you said I think it happens when it gets hot. I did originally try to push it back by hand, and it didnt work. Maybe I just didn't do it in the right area, but the shop's try at it worked. |
09-11-2019, 10:14 AM | #8 | |
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09-17-2019, 10:10 AM | #9 |
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had another track day and the noise did not pop up, so perhaps bending the heat shield worked. it was a different track, but the noise was pretty persistent in various corners before. also had a nice pic snagged of the car:
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09-17-2019, 11:25 AM | #10 | |
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09-17-2019, 05:34 PM | #11 |
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I had a similar clicking noise that only presented at high lateral loads. On my car it ended up being that the 2 season old wheel studs were no longer thread locked and slightly backed out just a few degrees from being bottomed out (and obv no torque). Presumably this was a result of the heat cycling and regular wheel changes breaking the permanent thread locker. Replacing the studs fixed the noise and it hasn't been back. Now I check the studs every wheel change, and plan to replace them every year. YMMV
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